不知所云

bù zhī suǒ yún

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Definitions

  1. 1. to not know what sb is driving at
  2. 2. to be unintelligible

Child Words of 不知所云

不
bù

no; not so

不知
bù zhī

not to know

云
yún

(classical) to say

所
suǒ

actually

知
zhī

to know